Combined valve and switch mechanism



Oct. 9, 1934. HELFAND 1,976,559

COMBINED VALVE AND SWITCH MECHANISM Fild Jan. 28. 1951 2 Sheets-Sheet l INVEN TOR.

r2 4 ATTORNEYS.

9, 1934.- 5 HELFAND 1,976,559

COMBINED VALVE AND SWITCH IBCHANI SI Filed Jan. 28. 1931 2 Shuts-Sheet 2 7 9 2a @k A 1 7 26 I W24 nu I A? Q. n a J2 2/ -35 I w 40 Had: A? r I I 1 VENTOR.

ATTORNEYS.

Patented Oct. 9, 1934 1,976,559

UNITED STATES PATENT OFFICE COMBINED VALVE AND SWITCH BIECHANISM Samuel Helfand, Eric, Pa. Application January 23, 1931, Serial No. 511,817. SClaims. (crane-53) As exemplified the invention is applied to an stop pins 1% operating in slots 20 in the walls ordinary gas range. These ranges prwent a of the chamber, thus limiting the movement of real hazard in the ordinary household in that the the valve plugs to positions bringing the ports a valves as ordinarily located are within easy reach into register with'the ports 7 and. into a position of children so that it is not uncommon tor chilclosing said ports. A key mounting 21 is rotadren operating the gas valves to turn on the gas tively mounted on a screw 22 extending from the which may result in serious damage. The invencap screw 17. A key 23 is adapted to be inserted tion involves the arrangement of the control in into a key socket 24. in the outer end of each of position where it cannot he readily handled by the valve plugs. The key 23 has an extension 1o children and also in a position where it may be 23a which extends into a stem 25. The stem ex- Eli more readily controlled by the operator. The tends through a guide shoulder 26 and a spring invention also contemplates a unitary control 3'? is seated on the guide shoulder and operates for a plurality of burners and an automatic iiglitagainst a shoulder 28 on the stem, thus normally ing system so that as the gas is turned on for retracting the key 23. A shoulder 29 on the key any burner the burner is automatically lighted engages the inner surface ofthe guideshoulder it Other features and details of the invention will and limits the outward movement of the key and appear from the specification and claims. mom. A handle is arranged on the outer end A preferred embodiment of the invention is of the stem. illustrated in the accompanying drawings as The operator in turning on the gas for any so iollows:- desired burner grasps the handle 30, swings the is Fig. 1 shows a perspective view oi the stove mounting 21 with the key into position over the with the apparatus in place thereon. particular valve plug controlling the burner to .Fig. 2 a, front view of the control mechanism which it is desired to admit gas. The handle is with parts removed and partly in section. then pushed inwardly carrying the key into the 25 Fig. 3 a plan view of a spring for seating the socket 2d and the valve plug is operated turning so valve for seating the valveplugs. on the gas and the key released. The key is then Fig. 4 a central section through the control free to be used with relation to other valve plugs, mechanism on the line 4-4 inFig. 2. if desired, and the gas is turned off by bringing Fig. 5 a section on the line 5-5 in Fig. 4. the key again into position and into the socket so 1 marks the stove frame. This has our burner and returning the plug to closed position. In so openings 2 of the ordinary domestic range, and this manner a convenient control may be aran elevated oven 1a for convenience. A control ranged operating for all the burners and may be 3 tor the burners is mounted on the top at the placed at a point of safety so far as children are oven. concerned.

' Gas is supplied to the burners from a manifold I prefer to provide the mechanism with a light- 4. The manifold has a manifold chamber 5 and ing device so that as the gas is turned on to any a. supply pipe 6 leads into the manifold prefer burner, the burner is automatically lighted. This ably at the axis of the manifold. The gas passes is much simplified with the present mechanism from the, chamber 5 through radial openings, or in that the key used is automatically retracted 40 ports '1 to valve chambers 7o. Valve plugs 8 are after the gas is turned on so that this inward and arranged in the chambers, each plug having a outward movement of the key may be utilized for port 9 adapted to be brought into register with closing the switch of an electric lighter. .A bridge the opening I and an axial port 10 leading plate 31 is mounted upon the shoulder 29 of the through the smaller end of the plug to a discharge key, but insulated therefrom by insulation 32.

45 opening 11. A pipe 12 leadsirom each discharge This bridge plate presses in between spring switch opening to a mixer 13 of a burner 14, there being fingers 33 when the key is forced inwardly to as many valves around the maniiold and as many operative position, as clearly shown in dotted lines 7 pipes as there are burners. A cap 15 is arranged izrFig. 5. The switch fingers are secured to, but -'over the manifold chamber. A spring 16 is seinsulated from the sides of the valve chamber by '60 cured on the cap by a cap screw 1'1. This spring screws 34. Wires 35lead to and from the switch Engages Shoulders 13 011 the Va 1 118 8. the fingers and to and from one side of a transformer single spring, therefore, exerting pressure on all 36 stepping down the current from the main supthe plugs, thus maintaining the plugs in close ply wires 3'7. The wires 35 pass to a spark coil seating engagement with the chamber walls. 38 operating a spark plug 39, the points 40 being 55 The valve plugs are provided with the usiml in igniting. position relatively to the burner. 1 10 There is a lighting device with a similar switch for each valve chamber so that when the key is brought over any valve for any burner and forced inwardly to actuate the valve it closes the electric circuit so that as the gas is turned on a spark is provided for immediately igniting the gas.

What I claim as new is:-

1. In a combined valve and switch mechanism, the combination of a conduit; a rotatable valve controlling the conduit; means actuating the valve including a key; a mounting for the key in which the key is movable axially to and from engagement with the valve; and a switch controlled by the axial movement of the'key.

2. In a combined valve the combination of a conduit; a manifold to which the conduit leads; rotative valve connections leading from the manifold; valves controlling the connections; a key for the valves; a mounting for the and out of engagement with the valves, said mounting housing the valves being movable to guide the key relatively to the valves; switches, one for each valve; and means operating the switch with the axial movement of the key as each valve is opened.

3. In a combined valve and switch mechanism, the combination of a conduit; a manifold to which the conduit leads; connections leading from the manifold; rotative valves controlling the connections, said-valves being similarly spaced about a common center; a key for the valves; a rotative mounting for the key in which the key is axially movable into and out of engagement with the valves, said mounting rotating to guide the key selectively to the valves,-said mounting having an axis at the common center; switches, one for each valve; and means closing the switches with the opening of each valve.

4. In a combined valve and switch mechanism, the combination of a conduit; a manifold to which the conduit leads; connections from the manifold;

valves controlling the connections; a key for the valves; a mounting for..the key in which the key.

is axially movable into and out of engagement with the valves, said mounting housing the valves and rotating to guide the key selectively to the and switch mechanism,

key in which the key is axially movable into g the key to engage a valve.

5. In a combined valve and switch mechanism,

the combination of a conduit; a manifold to which.

the conduit leads; connections leading from the manifold; valvescontrolling the connections, said valves being similarly spaced about a common center; a key for the valves; a rotative mounting for the key in which the key isaxially movable into and out of engagement with the valves, said mounting rotating to guide the key selectively to the valves, said mounting having an axis at the common center; and a switch closed by the movement of the key to engage a valve the mounting forming a housing for the switches.

6. In a combined valve and switch mechanism, the combination of a conduit; a manifold to which the conduit leads; connections leading from the manifold; valves controlling the-connections, said valves being similarly spaced around a common center; a key for the valves; a rotative mounting for the key adapted to guide the key selectively to the valves; said mounting having an axis at the common center; a common spring centrally supported acting on all the valves for. seating them; and a common device securing the mountingand the spring.

7. In a combined valve and switch mechanism, the combination of a conduit; a rotatable valve .controlling the conduit; means actuating the mounted concentrically around the manifold;

connections leading from the valves; a key for -,the valves; and a mounting for the key in which the key is movable axially into and'out of engagement with the selected valve, said mounting being movable to guide the key selectively to the valves and forming a housing for the valves.

' SAMUEL HELFAND. 

